@ok k2_skip
<?php
/* Prototype  : int strnatcmp  ( string $str1  , string $str2  )
 * Description: String comparisons using a "natural order" algorithm
 * Source code: ext/standard/string.c
*/
echo "*** Testing strnatcmp() : basic functionality ***\n";
$a1 = "abc1";
$b1 = "abc10";
$c1 = "abc15";
$d1 = "abc2";
$a2 = "ABC1";
$b2 = "ABC10";
$c2 = "ABC15";
$d2 = "ABC2";
echo "Less than tests\n";
var_dump(strnatcmp($a1, $b1));
var_dump(strnatcmp($a1, $c1));
var_dump(strnatcmp($a1, $d1));
var_dump(strnatcmp($b1, $c1));
var_dump(strnatcmp($d1, $c1));
var_dump(strnatcmp($a1, $b2));
var_dump(strnatcmp($a1, $c2));
var_dump(strnatcmp($a1, $d2));
var_dump(strnatcmp($b1, $c2));
var_dump(strnatcmp($d1, $c2));
echo "Equal too tests\n";
var_dump(strnatcmp($b1, $b1));
var_dump(strnatcmp($b1, $b2));	
echo "Greater than tests\n";
var_dump(strnatcmp($b1, $a1));
var_dump(strnatcmp($c1, $a1));
var_dump(strnatcmp($d1, $a1));
var_dump(strnatcmp($c1, $b1));
var_dump(strnatcmp($c1, $d1));
var_dump(strnatcmp($b1, $a2));
var_dump(strnatcmp($c1, $a2));
var_dump(strnatcmp($d1, $a2));
var_dump(strnatcmp($c1, $b2));
var_dump(strnatcmp($c1, $d2));


